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Many glass-forming fluids exhibit a remarkable thermodynamic scaling in which dynamic properties, such as the viscosity, the relaxation time, and the diffusion constant, can be described under different thermodynamic conditions in terms of…

软凝聚态物质 · 物理学 2015-06-16 Wen-Sheng Xu , Karl F. Freed

The structural properties of Thallium (III) oxide (Tl2O3) have been studied both experimentally and theoretically under compression at room temperature. X-ray powder diffraction measurements up to 37.7 GPa have been complemented with ab…

In the present work, we report the experimental thermopower ($\alpha$) data for ZnV$_{2}$O$_{4}$ compound in the high temperature range 300-600 K. The value of $\alpha$ is found to be $\sim$184 and $\sim$126 $\mu$V/K at $\sim$300 and…

材料科学 · 物理学 2016-09-30 Saurabh Singh , R. K. Maurya , Sudhir K. Pandey

Recent advances regarding the interplay between ab initio calculations and metrology are reviewed, with particular emphasis on gas-based techniques used for temperature and pressure measurements. Since roughly 2010, several thermophysical…

We investigate the temperature dependence of thermodynamic (density, isobaric heat capacity), dynamical (self-diffusion coefficient, shear viscosity), and dielectric properties of several water models, the commonly employed TIP3P water…

软凝聚态物质 · 物理学 2022-04-13 Tatiana I. Morozova , Nicolas A. Garcia , Jean-Louis Barrat

Recent laboratory experiments suggest an intrinsic asymmetry between heating and cooling, with heating occurring more efficiently. Two decades earlier, molecular dynamics (MD) simulations had examined a related setup - heating one side of a…

统计力学 · 物理学 2025-12-04 Hesam Arabzadeh , Brad Lee Holian

In this paper, we present corrections to the spectroscopic parameters of DB and DBA white dwarfs with -10.0 < log(H/He) < -2.0, 7.5 < log(g) < 9.0 and 12000 K < T_eff < 34000 K, based on 282 3D atmospheric models calculated with the CO5BOLD…

太阳与恒星天体物理 · 物理学 2020-11-26 Elena Cukanovaite , Pier-Emmanuel Tremblay , Pierre Bergeron , Bernd Freytag , Hans-Günter Ludwig , Matthias Steffen

The calculation of the He4 energy and specific heat is carried out in a wide temperature range within the two-time temperature Green functions approach. The approximation improving the random phase approximation is developed providing the…

统计力学 · 物理学 2024-01-04 A. A. Rovenchak

We consider two statistically independent systems described by the same entropy belonging to the two-parameter family of Sharma-Mittal. Assuming a weak interaction among the systems, allowing in this way an exchange of heat and work, we…

统计力学 · 物理学 2009-11-11 A. M. Scarfone

We have performed both in-plane resistivity, Hall effect and specific heat measurements on the thermoelectric cobalt oxide Ca$_{3}$Co$_{4}$O$_{9}$. Four distinct transport regimes are found as a function of temperature, corresponding to a…

强关联电子 · 物理学 2007-05-23 P. Limelette , V. Hardy , P. Auban-Senzier , D. Jerome , D. Flahaut , S. Hebert , R. Fresard , Ch. Simon , J. Noudem , A. Maignan

Evolutionary searches were employed to predict the most stable structures of perovskites with helium atoms on their A-sites up to pressures of 10 GPa. The thermodynamics associated with helium intercalation into [CaZr]F6, structure that…

材料科学 · 物理学 2023-03-23 Stefano Racioppi , Maosheng Miao , Eva Zurek

The resonant frequencies of three-dimensional microwave cavities are explicitly dependent on the dielectric constant of the material filling the cavity, making them an ideal system for probing material properties. In particular, dielectric…

其他凝聚态物理 · 物理学 2022-12-21 R. T. Learn , E. Varga , V. Vadakkumbatt , J. P. Davis

Thermopower, a key parameter in thermoelectric performance, is often linked to either specific heat or entropy, yet the fundamental quantity that governs it has remained elusive. In this work, we present a unified theoretical framework that…

材料科学 · 物理学 2025-06-12 Morteza Jazandari , Jahanfar Abouie , Daryoosh Vashaee

Thermal conductance has emerged as a powerful probe of topological order in the quantum Hall effect and beyond. The interpretation of experiments crucially depends on the ratio of the sample size and the equilibration length, on which…

介观与纳米尺度物理 · 物理学 2020-07-07 Ken K. W. Ma , D. E. Feldman

Tests of big bang nucleosynthesis and early universe cosmology require precision measurements for helium abundance determinations. However, efforts to determine the primordial helium abundance via observations of metal poor H II regions…

宇宙学与河外天体物理 · 物理学 2015-05-18 Erik Aver , Keith A. Olive , Evan D. Skillman

Next-generation gravitational wave observatories are expected to use cryogenically cooled, pendulum-suspended 200 kg test mass mirrors from a crystalline material such as crystalline silicon. During operation of the observatories, these…

The specific heat of liquid helium was calculated theoretically in the Landau theory. The results deviate from experimental data in the temperature region of 1.3 - 2.1 K. Many theorists subsequently improved the results of the Landau theory…

其他凝聚态物理 · 物理学 2009-11-13 Shosuke Sasaki

In this work, the elastic and thermodynamic properties of Pt$_{3}$Al under high pressure are investigated using density functional theory within the generalized gradient approximation. The results of bulk modulus and elastic constants at…

材料科学 · 物理学 2015-12-25 N. Wei , Ch. Zhang , S. Hou

We introduce a system of equations that models a non-isothermal magnetoviscoelastic fluid. We show that the model is thermodynamically consistent, and that the critical points of the entropy functional with prescribed energy correspond…

偏微分方程分析 · 数学 2023-05-24 Hengrong Du , Yuanzhen Shao , Gieri Simonett

The article, presents the study of the regularity of two thermoelastic beam systems defined by the Timoshenko beam model coupled with the heat conduction of Green-Naghdiy theory of type III, both mathematical models are differentiated by…